ATE31085T1 - PRE-STRETCHED ION EXCHANGE MEMBRANES. - Google Patents

PRE-STRETCHED ION EXCHANGE MEMBRANES.

Info

Publication number
ATE31085T1
ATE31085T1 AT85305309T AT85305309T ATE31085T1 AT E31085 T1 ATE31085 T1 AT E31085T1 AT 85305309 T AT85305309 T AT 85305309T AT 85305309 T AT85305309 T AT 85305309T AT E31085 T1 ATE31085 T1 AT E31085T1
Authority
AT
Austria
Prior art keywords
ion exchange
exchange membranes
membranes
preparing
disclosed
Prior art date
Application number
AT85305309T
Other languages
German (de)
Inventor
Thomas Charles Bissot
Original Assignee
Du Pont
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Du Pont filed Critical Du Pont
Application granted granted Critical
Publication of ATE31085T1 publication Critical patent/ATE31085T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C08J5/2287—After-treatment
    • C08J5/2293—After-treatment of fluorine-containing membranes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

Pre-swelled ion exchange membranes formed from one or more layers of fluorinated polymer having carboxylic or sulfonic acid functional groups and which polymer contains about 8 to 30% by weight of a swelling agent of the formula HO(CH2CHYO)nH where Y=H or CH3 and n=2, 3 or 4 are disclosed. Also disclosed are processes for preparing these membranes, electrochemical cells utilizing these membranes, and methods of preparing said cells for use in chloralkali processes.
AT85305309T 1984-07-26 1985-07-25 PRE-STRETCHED ION EXCHANGE MEMBRANES. ATE31085T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/634,779 US4595476A (en) 1984-07-26 1984-07-26 Ion exchange membranes pre-expanded with di- and poly ether-glycols
EP85305309A EP0172673B1 (en) 1984-07-26 1985-07-25 Pre-expanded ion exchange membranes

Publications (1)

Publication Number Publication Date
ATE31085T1 true ATE31085T1 (en) 1987-12-15

Family

ID=24545168

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85305309T ATE31085T1 (en) 1984-07-26 1985-07-25 PRE-STRETCHED ION EXCHANGE MEMBRANES.

Country Status (9)

Country Link
US (1) US4595476A (en)
EP (1) EP0172673B1 (en)
JP (1) JPS6153328A (en)
AT (1) ATE31085T1 (en)
BR (1) BR8503502A (en)
CA (1) CA1271726A (en)
DE (1) DE3561073D1 (en)
DK (1) DK340085A (en)
IN (1) IN164888B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4686120A (en) * 1985-02-22 1987-08-11 E. I. Du Pont De Nemours And Company Multilayer cation exchange membrane
JPS61264247A (en) * 1985-05-17 1986-11-22 Agency Of Ind Science & Technol Production of moisture sensitive element
JP2609524B2 (en) * 1987-06-15 1997-05-14 旭化成工業株式会社 Hydrolysis method of fluorine ion exchange resin membrane
US5168005A (en) * 1990-12-21 1992-12-01 E. I. Du Pont De Nemours And Company Multiaxially reinforced membrane
US5128014A (en) * 1991-03-01 1992-07-07 E. I. Du Pont De Nemours And Company Irradiation of cation exchange membranes
JPH05262902A (en) * 1992-03-23 1993-10-12 Tanaka Kikinzoku Kogyo Kk Preparation of ion-exchange membrane
US5264093A (en) * 1992-04-30 1993-11-23 E. I. Du Pont De Nemours And Company Irradiation of cation exchange membranes to increse current efficiency and reduce power consumption
US5330626A (en) * 1993-02-16 1994-07-19 E. I. Du Pont De Nemours And Company Irradiation of polymeric ion exchange membranes to increase water absorption
US5310765A (en) * 1993-03-03 1994-05-10 E. I. Du Pont De Nemours And Company Process for hydrolysis of ion exchange membranes
US6841285B2 (en) * 2002-08-28 2005-01-11 Ballard Power Systems Inc. Impregnation of ion-exchange membranes to improve electrochemical fuel cell performance
US7582334B2 (en) * 2004-08-11 2009-09-01 The United States Of America As Represented By The Secretary Of The Navy Method to accelerate wetting of an ion exchange membrane in a semi-fuel cell

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000057A (en) * 1974-11-21 1976-12-28 Hooker Chemicals & Plastics Corporation Electrolytic cell membrane conditioning
JPS5173991A (en) * 1974-12-25 1976-06-26 Asahi Chemical Ind YOIONKOKANJUSHIMAKUNOKAIRYOHOHO
JPS5272398A (en) * 1975-12-15 1977-06-16 Kureha Chem Ind Co Ltd Fixing method of ion exchange membrane
JPS5858365B2 (en) * 1976-07-02 1983-12-24 東ソー株式会社 Manufacturing method of cation exchange membrane
US4168352A (en) * 1976-12-13 1979-09-18 Compagnie Generale D'electricite Poly (2-hydroxyethylmethacrylate) membranes for electrochemical use and the manufacture thereof
JPS5835531B2 (en) * 1977-06-13 1983-08-03 東ソー株式会社 How to improve the performance of cation exchange membranes
JPS5544549A (en) * 1978-09-26 1980-03-28 Asahi Glass Co Ltd Fluorine-contained cation exchange membrane for electrolysis
US4376030A (en) * 1979-08-27 1983-03-08 The Dow Chemical Company Electrolytic cell ion-exchange membranes
AU541096B2 (en) * 1980-06-11 1984-12-13 Dow Chemical Company, The Fluorocarbon vinyl ethers and their polymers
JPS58163446A (en) * 1982-03-25 1983-09-28 Tokuyama Soda Co Ltd Ion exchange membrane treatment method

Also Published As

Publication number Publication date
US4595476A (en) 1986-06-17
CA1271726A (en) 1990-07-17
DK340085D0 (en) 1985-07-25
BR8503502A (en) 1986-04-22
IN164888B (en) 1989-06-24
EP0172673B1 (en) 1987-11-25
EP0172673A1 (en) 1986-02-26
JPS6153328A (en) 1986-03-17
DE3561073D1 (en) 1988-01-07
JPH0439489B2 (en) 1992-06-29
DK340085A (en) 1986-01-27

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee